DXGKARGCB_MAPMDLTOIOMMU structure (d3dkmddi.h)
The DXGKARGCB_MAPMDLTOIOMMU structure contains the arguments used by the DXGKCB_MAPMDLTOIOMMU callback function, to map a memory descriptor list (MDL) to the IOMMU.
Syntax
typedef struct _DXGKARGCB_MAPMDLTOIOMMU {
[in] PMDL pMdl;
[out] HANDLE hMemoryHandle;
} DXGKARGCB_MAPMDLTOIOMMU;
Members
[in] pMdl
An MDL which must be populated with valid pages. The MDL and the pages it points to must remain unchanged until the corresponding unmap call is made.
[out] hMemoryHandle
A Dxgkrnl tracking handle for the allocation. This value should be passed to the corresponding DXGKCB_UNMAPMDLFROMIOMMU function.
Remarks
See IOMMU-based GPU isolation for more information.
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows 10, version 1803 (WDDM 2.4) |
Header | d3dkmddi.h |
See also
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